Eli Sarver elisarver
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| [[snippets]] | |
| description = "Sync upload" | |
| command = "pet sync -u" |
elisarver
/ wow_closures_in.go
Created
February 23, 2016 01:01
From Errors are Values (https://blog.golang.org/errors-are-values) – a pretty fantastic use of closures. Each of those writes passes along the result of the write to the next command and exits *before* trying the next step. This may solve an issue I've been having in several languages.
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| var err error | |
| write := func(buf []byte) { | |
| if err != nil { | |
| return | |
| } | |
| _, err = w.Write(buf) | |
| } | |
| write(p0[a:b]) | |
| write(p1[c:d]) | |
| write(p2[e:f]) |